Auxiliary rack and automatic dishwasher using the same

ABSTRACT

An auxiliary rack for an automatic dishwasher increases an adaptability of racks to accommodate a variety of items to be washed and further increases the adaptability through the use of a single auxiliary rack. An automatic dishwasher can be selectively provided with at least one auxiliary rack, which includes a pivot support; and an auxiliary rack insert, rotatably coupled to the pivot support, having a plurality of rack insert sides, each side providing a specific accommodation of items according to a rotation of the auxiliary rack insert. The auxiliary rack insert is selectively rotatable with respect to the pivot support through an insertion of at least one pivot pin, centrally disposed with respect to the auxiliary rack insert, into at least one pivot hole formed in either the pivot support or the auxiliary rack insert to be disposed in opposition to the pivot pin, thereby enabling a selective rotation of the auxiliary rack insert with respect to the pivot support, to direct upward any one of the rack insert sides. At least one nodule protrudes to a predetermined height from either the pivot support or the auxiliary rack insert, with at least one recess being opposingly formed to receive and seat the nodule in a rotation-checked state, which directs upward one of the plurality of rack insert sides.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of Korean Application No.10-2004-0030948, filed on May 3, 2004, which is hereby incorporated byreference as if fully set forth herein.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to automatic dishwashers, and moreparticularly, to an auxiliary rack for selective application inautomatic dishwashers.

2. Discussion of the Related Art

An automatic dishwasher is a home appliance for automatically washingand drying dishes and other items to be washed, which are placed on oneor more internally positioned racks, by spraying washing water over theracks and thereby onto the items being washed. A general automaticdishwasher is illustrated in FIG. 1.

As illustrated in FIG. 1, a cabinet housing 110 forms the perimeter ofan interior space of the dishwasher, and sliding racks 120 and 130 arerespectively installed in the interior space behind a cabinet door 111,which provides access to the sliding racks and items placed there forwashing. An arrangement of wheels (not shown) is typically provided onthe bottom of each of the sliding racks 120 and 130, to engage with oneor more rails (not shown) positioned under the sliding racks,respectively, so that either sliding rack may be easily rolled outthrough the cabinet door 111, when opened, and thereby accessed.

Under the cabinet housing 110, a sump 170, a pump 180, and a motor 190are coupled to each other to provide via a water guide 140 a pressurizedsource of washing water to each of a plurality of nozzles 150, 155, and160, which are respectively arranged adjacent the sliding racks 130 and140. When the motor 190 is operated, the pump 180 draws the washingwater collected in the sump 170 and pumps the washing water through thewater guide 140, out the nozzles 150, 155, and 160, and onto a varietyof items that may be placed in either of the sliding racks 130 and 140.

In an automatic dishwasher as described above, however, each of thesliding racks 130 and 140 has a predetermined structure, e.g., awire-mesh basket, which also fixes the amount, number, and type (sizeand shape) of items that can be placed on either sliding rack to bewashed, thus limiting the adaptability of rack usage. Though the greateradaptability can be achieved by installing one or more alternativelystructured racks, there is a limit to the number of various racks thatcan be simultaneously accommodated with the interior space of thecabinet housing, and it would be prohibitively cumbersome for a user toperform additional rack installation as required.

SUMMARY OF THE INVENTION

Accordingly, the present invention is directed to an auxiliary rack, andan automatic dishwasher using the same, that substantially obviates oneor more problems due to limitations and disadvantages of the relatedart.

An object of the present invention is to provide an auxiliary rack foran automatic dishwasher, which increases an adaptability of racks toaccommodate a variety of items to be washed and further increases theadaptability through the use of a single auxiliary rack.

Another object of the present invention is to provide an auxiliary rack,which facilitates the use of an automatic dishwasher.

Another object of the present invention is to provide an auxiliary rack,which eliminates the need to exchange an auxiliary rack.

Another object of the present invention is to provide an automaticdishwasher, which has increased adaptability to accommodate a variety ofitems to be washed, which facilitates dishwasher usage, and whicheliminates the need to exchange an auxiliary rack.

Additional advantages, objects, and features of the invention will beset forth in part in the description which follows and in part willbecome apparent to those having ordinary skill in the art uponexamination of the following or may be learned from practice of theinvention. The objectives and other advantages of the invention may berealized and attained by the structure particularly pointed out in thewritten description and claims hereof as well as the appended drawings.

To achieve these objects and other advantages in accordance with thepurpose of the invention, as embodied and broadly described herein,there is provided a rotatable auxiliary rack for accommodating items tobe washed by an automatic dishwasher. The rotatable auxiliary rackcomprises a pivot support; and an auxiliary rack insert, rotatablycoupled to the pivot support, having a plurality of rack insert sides,each side providing a specific accommodation of items according to arotation of the auxiliary rack insert.

In another aspect of the present invention, there is provided anexchangeable auxiliary rack for accommodating items to be washed by anautomatic dishwasher. The exchangeable auxiliary rack comprises a framehaving at least two sides between which a lattice structure connected toinner surfaces of the frame is formed; and detachable fixing means,provided to at least one outer surface of the frame, for selectivelyinstalling the auxiliary rack in a cabinet housing of the automaticdishwasher.

According to the present invention, the exchangeable auxiliary rackenables a selective application of an auxiliary rack to an automaticdishwasher by installing any one of several exchangeable auxiliary racksas desired. Meanwhile, the rotatable auxiliary rack enables a selectiverotation of the auxiliary rack insert to direct upward any one theplurality of rack insert sides as desired and to thereby embody any oneof the several exchangeable auxiliary racks.

In another aspect of the present invention, there is provided anautomatic dishwasher comprising at least one sliding rack installed in acabinet housing of the automatic dishwasher; at least one of the aboveauxiliary racks; and detachable fixing means for selectively installingthe at least one auxiliary rack with respect to the at least one slidingrack.

It is to be understood that both the foregoing general description andthe following detailed description of the present invention areexemplary and explanatory and are intended to provide furtherexplanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this application, illustrate embodiment(s) of the invention andtogether with the description serve to explain the principle of theinvention. In the drawings:

FIG. 1 is a cross-sectional view of a general automatic dishwasher,showing a plurality of sliding racks;

FIGS. 2A and 2B are perspective views of two different types ofexchangeable auxiliary racks, respectively, according to an embodimentof the present invention;

FIG. 3 is an exploded perspective view of a rotatable auxiliary rackaccording to another embodiment of the present invention;

FIG. 4 is a perspective view of the rotatable auxiliary rack of FIG. 3,illustrating its operation; and

FIG. 5 is a cross-sectional view of an automatic dishwasher according tothe present invention.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to preferred embodiments of thepresent invention, examples of which are illustrated in the accompanyingdrawings. Wherever possible, like reference numbers will be usedthroughout the drawings to refer to the same or similar parts.

FIGS. 2A and 2B respectively illustrate first and second exchangeableauxiliary racks 10 and 20 as individual auxiliary racks foraccommodating various types of items to be washed. The firstexchangeable auxiliary rack 10 may be particularly devised toaccommodate, for example, primarily long narrow items, such as knives,chopsticks, and similarly shaped utensils, and the second exchangeableauxiliary rack 20 may be particularly devised to accommodate, forexample, primarily large round items, such as cups, glasses, andsimilarly shaped dishware. Either of the first and second exchangeableauxiliary racks 10 and 20 may be selectively installed in the interiorspace of the cabinet housing 110, for example, to correspond to theinternal positioning of one of the sliding racks 130 and 140, preferablybeing selectively installed on one or more of the sliding racksthemselves, for example, to be suspended within the basket-likestructure of either rack, using a detachable fixing means 11 or 12comprised of at least one hanger provided to one or more outer surfaces,e.g., a rear edge surface, of the first or second exchangeable auxiliaryrack.

The first exchangeable auxiliary rack 10 comprises a frame 13 having atleast two sides between which a lattice structure connected to innersurfaces of the frame is formed by a plurality of first rods 14intersecting a plurality of second rods 15 and a plurality of first pegs16 extending perpendicularly to a predetermined height frompredetermined points of intersection between the rods. Similarly, thesecond exchangeable auxiliary rack 20 comprises a frame 23 having atleast two sides between which a lattice structure connected to innersurfaces of the frame is formed by a plurality of third rods 24intersecting a plurality of fourth rods 25 and a plurality of secondpegs 26 extending perpendicularly to a predetermined height frompredetermined points of intersection between the rods. The auxiliaryracks may be provided with a side holder 17 or 27 for receiving one ormore items arranged along an outward edge of the lattice structure andmay be configured to have a predetermined gradient with respect to aninstalled auxiliary rack so that the received items may be held at restin the side holder. In any case, the specific structure of the first andsecond exchangeable auxiliary racks 10 and 20, each of which constituteindividual and separate components of an automatic dishwasher, may bevariously provided as desired, and any number of such racks can be madeavailable for exchange as desired by a user.

The individualized nature of the above-described racks, however, stilllimits the adaptability of rack usage, since the number of various racksthat can be simultaneously accommodated with the interior space of thecabinet housing is still limited and since a user must performadditional rack installation as required. Therefore, the presentinvention provides a rotatable auxiliary rack 300 as illustrated in FIG.3.

According to the present invention, the rotatable auxiliary rack 300includes an auxiliary rack insert 301, a pivot support 330, and adetachable fixing means 310 comprised of at least one hanger provided tothe pivot support. The auxiliary rack insert 301 is rotatable within thepivot support 330, to accommodate a placement of a variety of items ofvarying size and shape, by directing upward one of a plurality of rackinsert sides according to the rotation of the auxiliary rack insert andthe number of rack insert sides provided. In a preferred embodiment ofthe present invention, the rotatable auxiliary rack 300 provides twosuch rack insert sides, namely, a first side (directed upward in FIG. 3)and a second side (the reverse side), each rack insert side providing aspecific accommodation for items to be washed by their placement on acorresponding lattice structure such as that shown in FIG. 2A or 2B. Inother words, one rack insert side can be designed to receive one type ofitem or one set of items, and the other rack insert side can be designedto receive another type of item or another set of items.

The auxiliary rack insert 301 is selectively rotated 180°, by a user asdesired, within the pivot support 330, which is formed of an elasticmaterial to impart the pivot support with an elasticity with respect tothe auxiliary rack insert. In doing so, one of the two rack insert sidesand thereby one of the lattice structures can be selectively directedupward. Here, two lattice structures are formed by a plurality of fifthrods 340 intersecting a plurality of sixth rods 350 and pluralities ofthird and fourth pegs 360 a and 360 b respectively extendingperpendicularly, in opposite directions, to a predetermined height frompredetermined points of intersection between the rods. At the same time,the selective rotation also causes one of first and second side holders370 a and 370 b, which are arranged along one side of the auxiliary rackinsert 301 and preferably configured to have a predetermined gradient,to become accessible and thereby provide various additionalaccommodation for item placement according to the rotation of theauxiliary rack insert. Though not specifically illustrated in thedrawings, the auxiliary rack insert 301 according to the presentinvention may comprise a lattice structure having more than two sides,each of which may be selectively directed upward in turn by aless-than-180° rotation of the auxiliary rack insert within the pivotsupport 330.

In addition to a lattice structure such as that described above, theauxiliary rack insert 301 comprises at least one outer frame surface 302having a pivot pin 303, which is centrally disposed for supporting therotation of the auxiliary rack insert. The lattice structure of theauxiliary rack insert 301 is structurally connected, preferably atopposing ends of the lattice structure, to the at least one outer framesurface 302. Meanwhile, the pivot support 330 comprises at least oneinner pivoting surface 332 having a pivot hole 333, which is centrallyformed for receiving the pivot pin of the at least one outer framesurface and is therefore disposed in opposition to the pivot pin of theouter frame surface. Thus, since each outer frame surface 302 can berotated with respect to a corresponding inner pivoting surface 332, theouter frame surfaces and inner pivoting surfaces oppose each other alonga circular plane 380 (see FIG. 4) established by one full rotation.

To couple the auxiliary rack insert 301 to the pivot support 330, eachpivot pin 303, which protrudes a predetermined length from each outerframe surface 302, is inserted into the corresponding pivot hole 333 toestablish a pivot point 381 at one end of an axis of rotation 382intersecting perpendicularly the circular plane 380. Accordingly, ameans of rotating the auxiliary rack insert 301 with respect to thepivot support 330 is established by the insertion of the pivots pins 303into the pivot holes 333. Though the embodiment shown in FIG. 3 includesa coordinated pair of rotation means, formed by two outer frame surfaces302 respectively rotating with respect to two inner pivoting surfaces332 along two circular planes 380, such that there are likewise twopivot pins 303 and two pivot holes 333, the present invention may berealized by a rotation means that pivots with respect to just onesurface (circular plane), which may correspond to that of either pivotpoint or to that of another side of the lattice structure, using justone each of the pivot pins and the pivot holes. In addition, though theembodiment of FIG. 3 provides the pivot pins 303 to the outer framesurfaces 302 and the pivot holes 333 to the inner pivoting surfaces 332,the same effect can be achieved by providing the pivot holes to theouter frame surfaces and the pivot pins to the inner pivoting surfaces.

For selectively checking the rotation of the auxiliary rack insert 301within the pivot support 330, a rotation checking means is provided onan opposing pair of rotation surfaces corresponding to the at least oneouter frame surface 302 and the at least one inner pivoting surface 332.In the preferred embodiment, the rotation checking means is comprised ofat least one recess 334 formed in each inner pivoting surface 332 of thepivot support 330 to receive and seat, in a rotation-checked state, atleast one nodule 304 protruding to a predetermined height from eachouter frame surface 302 of the auxiliary rack insert 301, thepredetermined height of the nodule being less than the predeterminedlength of the pivot pin 303. Thus, while in the rotation-checked state,the auxiliary rack insert 301 is supported within the pivot support 330by the pivot pins 303 respectively inserted in the pivot holes 333 andby the nodules 304 respectively seated in the recesses 334, and duringrotation, the auxiliary rack insert is supported by the pivot pins only.

Preferably, the rotation checking means is provided on either side ofeach pivot point. Each nodule 304 may be provided with at least oneinclined surface 304 a disposed, preferably, along at least one of anupper engaging edge and a lower engaging edge of each nodule accordingto a rotation of the auxiliary rack insert 301 with respect to the pivotsupport 330, to impart the nodules with a predetermined angle ofinclination for facilitating the rotation while providing a checkingforce sufficient to hold the rotation-checked state, i.e., to prevent aslippage of the auxiliary rack insert with respect to the pivot support,which may result due to an imbalanced placement of items with respect tothe pivot point. The elasticity of the pivot support 330 enables thenodules 304 to be fully removed from their seated positions, to passover the inner pivoting surfaces 332 and allow rotation of the auxiliaryrack insert 301 as desired, either before or after an installation ofthe rotatable auxiliary rack 300 in the dishwasher. The elasticity ofthe pivot support 330 also enables the replacement and exchange of theauxiliary rack insert 301 with respect to the pivot support, to provideeven greater adaptability.

The rotatable auxiliary rack 300 is loadable into the interior space ofthe cabinet housing 110 to be selectively coupled via the detachablefixing means 310 to an interior surface of the cabinet housing 110, forexample, at a position correspon ding to either of the sliding racks 120and 130. The pivot support 330 is essentially channel-shaped andincludes a rear connecting bar 331 for supporting the pivot support byconnecting the inner pivoting surfaces 332, the rear connecting barhaving a rear edge surface providing one or more coupling points for thedetachable fixing means 310. Preferably, the auxiliary rack insert 301is coupled to the pivot support 330 before loading the rotatableauxiliary rack 300 in an automatic dishwasher.

As shown in FIG. 5, an automatic dishwasher according to the presentinvention may be provided with any one of the auxiliary racks of thepresent invention as described above. For example, in the operation ofthe automatic dishwasher having an auxiliary rack according to thepresent invention, the user first opens the door 111 and withdrawseither of the sliding racks 120 and 130. After placing items in one orboth of the sliding racks 120 and 130, one or more of the auxiliaryracks (300, 10, 20) can be loaded onto either sliding rack, and variousitems to be washed may be additionally placed according to the selectedinstallation of the auxiliary rack or its selective rotation. Here, thelattice structure of the auxiliary racks allows the sprayed washingwater to reach items that may be placed on a sliding rack beneath anauxiliary rack.

By adopting the auxiliary rack according to the present invention, anadaptability of racks to accommodate a variety of items to be washed isincreased since the auxiliary rack may be selectively loaded onto asliding rack of an automatic dishwasher, so that various assortments ofdishes and the like, for example, an assortment of cups or an assortmentof knives, can be placed as desired on the racks, to be washed accordingto a user selection, thus facilitating the use of the automaticdishwasher. In particular, the present invention further increases theabove adaptability through the use of a single auxiliary rack. Inaddition, by providing a rotatable auxiliary rack, there is no need toexchange an auxiliary rack, since the rotatable auxiliary rack can beselectively rotated to direct upward one of a plurality of rack insertsides designed to receive one type of item or one set of items, asdesired.

It will be apparent to those skilled in the art that variousmodifications and variations can be made in the present inventionwithout departing from the spirit or scope of the inventions. Thus, itis intended that the present invention cover the modifications andvariations of this invention provided they come within the scope of theappended claims and their equivalents.

1. An auxiliary rack for accommodating items to be washed by anautomatic dishwasher, the auxiliary rack comprising: a pivot support;and an auxiliary rack insert, rotatably coupled to said pivot support,having a plurality of rack insert sides, each side providing a specificaccommodation of items according to a rotation of said auxiliary rackinsert.
 2. The auxiliary rack as claimed in claim 1, wherein saidauxiliary rack insert has two rack insert sides.
 3. The auxiliary rackas claimed in claim 1, wherein the rotation of said auxiliary rackinsert is 180°.
 4. The auxiliary rack as claimed in claim 1, furthercomprising: detachable fixing means for selectively installing theauxiliary rack in an automatic dishwasher.
 5. The auxiliary rack asclaimed in claim 4, wherein said detachable fixing means is connected tosaid pivot support.
 6. The auxiliary rack as claimed in claim 4, whereinsaid detachable fixing means comprises at least one hanger connected toa rear surface of said pivot support.
 7. The auxiliary rack as claimedin claim 1, wherein said pivot support comprises a rear connecting barfor supporting said pivot support.
 8. The auxiliary rack as claimed inclaim 7, further comprising: detachable fixing means, connected to saidrear surface of the rear connecting bar, for selectively installing theauxiliary rack in an automatic dishwasher.
 9. The auxiliary rack asclaimed in claim 1, wherein said pivot support is formed of an elasticmaterial to impart said pivot support with an elasticity with respect tosaid auxiliary rack insert.
 10. The auxiliary rack as claimed in claim9, wherein the elasticity of said pivot support enables a selectiverotation of said auxiliary rack insert with respect to said pivotsupport.
 11. The auxiliary rack as claimed in claim 9, wherein theelasticity of said pivot support enables replacement and exchange ofsaid auxiliary rack insert with respect to said pivot support.
 12. Theauxiliary rack as claimed in claim 1, wherein said auxiliary rack inserthas at least one outer frame surface and wherein said pivot support hasat least one inner pivoting surface, disposed in opposition to the atleast one outer frame surface, for receiving said auxiliary rack insert.13. The auxiliary rack as claimed in claim 12, wherein one of the atleast one inner pivoting surface and the at least one outer framesurface has a pivot hole for receiving a pivot pin protruding apredetermined length from the other of the at least one inner pivotingsurface and the at least one outer frame surface.
 14. The auxiliary rackas claimed in claim 13, wherein the pivot pin is centrally disposed withrespect to said auxiliary rack insert to support the rotation of saidauxiliary rack insert.
 15. The auxiliary rack as claimed in claim 13,wherein the predetermined length of the pivot pin supports a selectiverotation of said auxiliary rack insert with respect to said pivotsupport.
 16. The auxiliary rack as claimed in claim 1, furthercomprising: means for rotating said auxiliary rack insert with respectto said pivot support, said rotation means being established by aninsertion of at least one pivot pin, centrally disposed with respect tosaid auxiliary rack insert, into at least one pivot hole formed in onesaid pivot support and said auxiliary rack insert and disposed inopposition to the at least one pivot pin.
 17. The auxiliary rack asclaimed in claim 16, wherein said rotation means enables a selectiverotation of said auxiliary rack insert with respect to said pivotsupport, to direct upward one of the plurality of rack insert sides. 18.The auxiliary rack as claimed in claim 1, further comprising a rotationchecking means, provided to each of said pivot support and saidauxiliary rack insert, for selectively checking the rotation of saidauxiliary rack insert, to direct upward one of the plurality of rackinsert sides in a rotation-checked state.
 19. The auxiliary rack asclaimed in claim 18, wherein said rotation checking means comprises: atleast one nodule protruding to a predetermined height from one of saidpivot support and said auxiliary rack insert; and at least one recess,formed in the other of said pivot support and said auxiliary rackinsert, for receiving and seating said at least one nodule in arotation-checked state.
 20. The auxiliary rack as claimed in claim 19,wherein each of said at least one nodule comprises at least one inclinedsurface to impart the nodules with a predetermined angle of inclination.21. The auxiliary rack as claimed in claim 20, wherein said at least oneinclined surface is disposed along at least one engaging edge of eachnodule according to the rotation of said auxiliary rack insert.
 22. Theauxiliary rack as claimed in claim 20, wherein the predetermined angleof inclination facilitates the rotation of said auxiliary rack insertand provides a checking force sufficient to sufficient to hold therotation-checked state.
 23. The auxiliary rack as claimed in claim 18,wherein said rotation checking means is disposed on either side of ameans for rotating said auxiliary rack insert with respect to said pivotsupport.
 24. The auxiliary rack as claimed in claim 1, wherein saidauxiliary rack insert has more than two rack insert sides and wherein arotation of less than 180° selectively directs upward one of the morethan two rack insert sides.
 25. The auxiliary rack as claimed in claim1, wherein said pivot support comprises: at least one inner pivotingsurface, disposed in opposition to at least one outer frame surface ofsaid auxiliary rack insert, for elastically receiving said auxiliaryrack insert; a rear connecting bar, connected to said at least one innerpivoting surface, for supporting said pivot support; and at least onehanger, connected to a rear surface of said rear connecting bar, forselectively installing the auxiliary rack in an automatic dishwasher.26. The auxiliary rack as claimed in claim 1, wherein said auxiliaryrack insert comprises: a lattice structure formed by a plurality offirst rods intersecting a plurality of second rods.
 27. The auxiliaryrack as claimed in claim 26, wherein said lattice structure comprises: aplurality of first and second pegs, each extending perpendicularly to apredetermined height from predetermined points of intersection betweenthe first and second rods, to provide a specific accommodation of itemsaccording to the rotation of said auxiliary rack insert.
 28. Theauxiliary rack as claimed in claim 26, wherein said lattice structurecomprises: first and second side holders for receiving items to bewashed, each side holder being arranged along one side of said auxiliaryrack insert so that a selective rotation of said auxiliary rack insertcauses one of said first and second side holders to become accessible.29. The auxiliary rack as claimed in claim 28, wherein said first andsecond side holders are configured to have a predetermined gradient withrespect to the auxiliary rack, the predetermined gradient allowing thereceived items to be washed to be held at rest in the accessible sideholder when the auxiliary rack is installed in an automatic dishwasher.30. An auxiliary rack for accommodating items to be washed by anautomatic dishwasher, the auxiliary rack comprising: a frame having atleast two sides between which a lattice structure connected to innersurfaces of said frame is formed; and detachable fixing means, providedto at least one outer surface of said frame, for selectively installingthe auxiliary rack in a cabinet housing of an automatic dishwasher. 31.The auxiliary rack as claimed in claim 30, wherein said detachablefixing means comprises at least one hanger connected to a rear surfaceof said frame.
 32. The auxiliary rack as claimed in claim 30, whereinthe lattice structure of said frame is formed by a plurality of firstrods intersecting a plurality of second rods.
 33. The auxiliary rack asclaimed in claim 32, wherein the lattice structure comprises a pluralityof pegs, extending perpendicularly to a predetermined height frompredetermined points of intersection between the first and second rods,to provide a specific accommodation of items.
 34. The auxiliary rack asclaimed in claim 32, wherein said lattice structure comprises: a sideholder for receiving items to be washed, said side holder being arrangedalong one side of said frame and configured to have a predeterminedgradient with respect to the auxiliary rack, the predetermined gradientallowing the received items to be washed to be held at rest in said sideholder when the auxiliary rack is installed in an automatic dishwasher.35. An automatic dishwasher comprising: at least one sliding rackinstalled in a cabinet housing of the automatic dishwasher; and at leastone auxiliary rack for providing a specific accommodation of items to bewashed, comprising: a frame having at least two sides between which alattice structure connected to inner surfaces of said frame is formed;and detachable fixing means, provided to at least one outer surface ofsaid frame, for selectively installing the at least one auxiliary rackwith respect to said at least one sliding rack.
 36. The automaticdishwasher as claimed in claim 35, wherein said at least one auxiliaryrack further comprises: a pivot support; and an auxiliary rack insert,rotatably coupled to said pivot support, having a plurality of rackinsert sides, each side providing a specific accommodation of itemsaccording to a rotation of said auxiliary rack insert.
 37. The automaticdishwasher as claimed in claim 36, further comprising: means forrotating said auxiliary rack insert with respect to said pivot support,said rotation means being established by an insertion of at least onepivot pin, centrally disposed with respect to said auxiliary rackinsert, into at least one pivot hole formed in one said pivot supportand said auxiliary rack insert and disposed in opposition to the atleast one pivot pin.
 38. The automatic dishwasher as claimed in claim37, wherein said rotation means enables a selective rotation of saidauxiliary rack insert with respect to said pivot support, to directupward one of the plurality of rack insert sides.
 39. The automaticdishwasher as claimed in claim 36, further comprising a rotationchecking means, provided to each of said pivot support and saidauxiliary rack insert, for selectively checking the rotation of saidauxiliary rack insert, to direct upward one of the plurality of rackinsert sides in a rotation-checked state.
 40. The automatic dishwasheras claimed in claim 39, wherein said rotation checking means comprises:at least one nodule protruding to a predetermined height from one ofsaid pivot support and said auxiliary rack insert; and at least onerecess, formed in the other of said pivot support and said auxiliaryrack insert, for receiving and seating said at least one nodule in arotation-checked state.